Mandrel and straightening press



'May 29, 1923.

I 1,457,020 J. G. COLLINS MANDREL AND STRAIGHTENING PRESS Filed Nov. 6, 1919 I .J sh & L A

James 6. 60/0125 Q/vi tmeooea Patented May 29, 1923 I i,45i;02o

JAMES e. COLLINS, OFKALAMAZOO, MICHIGAN, AssIenoa TO ATL'As rnnss COMPANY,

or KALAMAZOO, MICHIGAN.

MANDREL AND STRAIGHTENING PRESS.

Application filed November 6, 1919. Serial No. 336,021.

To aZZ whom it may concern:

Be it known that I, JAMES G. COLLINS, a citizen of the United States, residing at the city and county of Kalamazoo, State of Michigan, have invented certain new and useful Improvements in Mandr'els and Straightening Presses, of which the follow ing is a specification.

This invention relates to a combined mandrel and straightening press.

The main objects of this invention are tov provide a combined mandrel, and straightening press which is compact in structure, very convenient to use and at the same time simple and economical to produce.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow. I

I accomplish the objects of my invention by the devices and means described in the following specification. The invention is clearly defined and pointed out in the claim.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing forming a part of this specification, in which:

Fig. I is a front elevation of my combined mandrel and straightening press, the operating lever being broken away.

Fig. II is a side elevation looking from the right of Fig. I.

Fig. III is a detail vertical section on a line corresponding to line 33 of Fig. I.

Fig. IV is an enlarged detail section on a line corresponding to line Hof Figs. I and II.

In the drawing similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

I Referring to the drawing, the base .1 is provided at its rear end with a standard or upright. 2 having a forward projection or overhang 3 at its upper end, overhanging the work table 4. The ram 5 is mounted on the overhang. The ram is actuated by a lever mechanism designated generallyby the numeral 6, the mechanism illustrated being that shown in the patent to. Flames No. 1,038,543, dated September 17, 1912. As

the details of the operating mechanism form no part of my present invention, I do not further illustrate the same herein.

The table is provided with an adjustable work holder '7. At each side of the work holder 7 the table isprovided with lateral projections 8, the projections having aligned grooves 9 therein adapted to receive the work supporting blocks 10. These rooves 9 are in the plane of the ram, that 1s, they are aligned therewith as'shown in the draw-- ings." The grooves have beveled sides 11 and channels 12 at the bottom, the sides be ing inclined so that any-chip of metal or the like which may fall thereon will slide into the channel and 'not'interfere with the blocks. Atthe'rear of the ram .the' table is provided with a horizontally disposed supporting barl3 havingarms lwadjustable teringpivots 15 and 16 so that a shaft or.

other part to be straightened may be cen-' '70 V thereon, the arms being provided with cen- I lishment of a large amount of workf'that is,

the'work may be gauged and thedistortion indicated thereon and directly laid upon the adapted for general' useas a mandrel or arbor press, the parts being arranged so as not to interfere in such use. It has the further advantage of being simple and economical to produce. I

I have illustrated and described my improvements in an'embodiment which I find very satisfactory. I have not attempted to I straightening blocks. The machine is also In a structure of the class described, the combination of a base, a standard, a ram and actuating means therefor, a work table having lateral projections at its sides, such 5 projections having aligned grooves therein in the plane of the ram, Work supporting blocks adjustable in said grooves, a supporting bar disposed horizontally through the table at the rear of said ram, and arms provided with centering pivots adjustably 1 mounted on said supporting bar.

In Witness whereof, I have hereunto set my hand and seal in the presence of two witnesses. 7

JAMES G. COLLINS. [Ls] Witnesses:

H. M. PHILIPP,

L. Mnsnnn. 

